Online interface for capillary calaphorestic hydride generated atomic spectrofluorimetry

Abstract

The co-using interface of the method of atom fluorescence spectrum and generation of the hybride in capillary electrophoresis relates to an apparatus thereof. This interface provides the key solutios that the capillary electrophoresis needs stable electric circuit, and that the method of atom fluorescence spectrum needs to convert analysed agent into hydride. The interface includes cross passage 1, T passage with small inner diameter 5, T passage with large inner diameter 7 and gas-liquid separator 6, cross passage 1 connected in turn to T passage with small inner diameter 5, T passage with large inner diameter 7 and gas-liquid separator 6. The interface has ingenious and novel design, having such features as small dead volume, short connecting piping and simple and practical operation.

Description

technical field

[0001] The invention relates to an interface device for the combined use of analytical chemical instruments, in particular to an interface device for the on-line combined use of capillary electrophoresis and atomic fluorescence spectrometry. technical background

[0002] The environmental biological behavior of an element depends strictly on its existing form, so speciation analysis of specific species as a determination element has attracted more and more attention. The speciation analysis process generally includes chromatographic separation and atomic light (mass) spectrometry detection. Commonly used chromatographic separation techniques include gas chromatography, liquid chromatography, and capillary electrophoresis. Compared with gas chromatography and liquid chromatography, capillary electrophoresis has the advantages of high resolution, short separation time and small amount of sample reagent. Common detection methods include atomic absorption spect...

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